[pavlosmelas]

I am a bit confused, are cross-linked polymers ALWAYS thermoset? Lets say, one of the monomers in a copolymerization has a functionality greater than 2 and a branched copolymer is formed,  the branches will react and create cross-links, is this a thermoset?

Gels for example are also cross-linked but they do are thermoplastic, right?

I hope someone can give me a good explanation.

Many thanks.

[Enthalpy]

Welcome, Pavlosmelas!

Elastomers are often (always?) cross-linked and many are thermoplastics. One example is EPDM
https://en.wikipedia.org/wiki/EPDM_rubber